ISIS Neutron and Muon Source Data Journal

Exploring high energy nematic spin correlations in uniaxial-strained BaFe2As2

Abstract: Electronic nematic phase in iron-pnictide superconductors have been discovered in various systems by techniques such as resistivity, ARPES, magnetic torque and neutron scattering. In this state, the electronic properties such as resistivity, spin excitation show anisotropy between (1 0) and (0 1) direction, even when the system is still in tetragonal phase. Our recent research of low energy spin excitations in detwinned BaFe2As2 shows nematic spin correlations persist to the tetragonal state, but it is unclear what happens at high energies.Given that the high energy spin waves in detwinned BaFe2As2 display two-fold rotational symmetry in our recent experiment on MERLIN, it is interesting to explore whether nematic fluctuations above Neel temperature will induce any nematicity in the high energy spin excitations dominated by superexchange coupling J between localized spins.

Principal Investigator: Dr Xingye Lu
Experimenter: Dr Hui-Qian Luo
Experimenter: Dr Wenliang Zhang
Experimenter: Professor Pengcheng Dai
Experimenter: Dr David Tam

DOI: 10.5286/ISIS.E.RB1510182

ISIS Experiment Number: RB1510182

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Xingye Lu et al; (2015): Exploring high energy nematic spin correlations in uniaxial-strained BaFe2As2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1510182

Data is released under the CC-BY-4.0 license.